Providing evidence to improve practice
Collected Evidence: Individual Study: Agri-environment schemes do not effectively protect biodiversity in Dutch agricultural landscapesIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1152http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1152Wed, 21 Jan 2009 14:39:00 +0000Collected Evidence: Individual Study: Alpha and beta diversity of arthropods and plants in organically and conventionally managed wheat fieldsIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1482http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1482Thu, 08 Oct 2009 14:59:00 +0100Collected Evidence: Individual Study: Assessing the value of Rural Stewardship schemes for providing forage resources and nesting habitat for bumblebee queens (Hymenoptera: Apidae)Individual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1591http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1591Tue, 08 Dec 2009 13:46:00 +0000Collected Evidence: Individual Study: Assessing the value of annual and perennial forage mixtures for bumblebees by direct observation and pollen analysisIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1628http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1628Thu, 17 Dec 2009 15:29:00 +0000Collected Evidence: Individual Study: A technique for year-round rearing of Bombus terrestris (Apidae, Bombini) colonies in captivityIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1682http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1682Fri, 15 Jan 2010 16:09:00 +0000Collected Evidence: Individual Study: A new method for starting bumblebee coloniesIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1693http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1693Wed, 20 Jan 2010 12:46:00 +0000Collected Evidence: Individual Study: A preliminary study on the development of colonies of Melipona beecheii in traditional and rational hivesIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1723http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1723Fri, 29 Jan 2010 16:52:00 +0000Collected Evidence: Individual Study: A candidate legume pollinator, Osmia sanrafaelae Parker (Hymenoptera: Megachilidae)Individual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1733http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1733Wed, 03 Feb 2010 14:15:00 +0000Collected Evidence: Individual Study: Agricultural landscapes with organic crops support higher pollinator diversityIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1782http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1782Wed, 17 Feb 2010 17:49:00 +0000Collected Evidence: Individual Study: Artificial rearing of bumble bees Bombus terrestris selects against heavy queensIndividual Studyhttp%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1801http%3A%2F%2Fconservationevidence.com%2Findividual-study%2F1801Wed, 24 Feb 2010 16:38:00 +0000Collected Evidence: Collected Evidence: Conserve old buildings or structures as nesting sites for bees We found no evidence for the effects of conserving old buildings and structures suitable for nesting wild bees. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F4http%3A%2F%2Fconservationevidence.com%2Factions%2F4Tue, 18 May 2010 10:34:38 +0100Collected Evidence: Collected Evidence: Eradicate existing populations of invasive non-native speciesOne replicated trial in Louisiana, USA, demonstrated that colonies of invasive Africanized honey bees Apis mellifera can be killed by providing insecticide (acephate)-laced syrup for 30 minutes. One replicated controlled before-and-after trial attempted to eradicate European buff-tailed bumblebees Bombus terrestris from trial sites in Japan by catching and killing foraging bees. The treatment led to an increase in numbers of two native bumblebee species, but did not eradicate B. terrestris.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F38http%3A%2F%2Fconservationevidence.com%2Factions%2F38Thu, 20 May 2010 04:54:57 +0100Collected Evidence: Collected Evidence: Exclude ants from solitary bee nesting sitesOne replicated controlled trial showed that excluding ants from solitary nests of the endemic Australian bee Exonuera nigrescens increased production of offspring.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F46http%3A%2F%2Fconservationevidence.com%2Factions%2F46Thu, 20 May 2010 06:43:55 +0100Collected Evidence: Collected Evidence: Convert to organic farmingEvidence on the impact of organic farming on wild bees is equivocal. Three replicated trials in Europe or Canada have shown that the abundance of wild bees is higher under organic arable farming than under conventional farming. One of these showed that bee diversity is higher in organically farmed wheat fields and in mown fallow strips adjacent to them. Three replicated trials in Europe or the USA have found no significant difference in the numbers of bumblebees (two trials), bumblebee species (one trial), or wild bees visiting flowering crops (one trial) between conventional and organic arable farms.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F25http%3A%2F%2Fconservationevidence.com%2Factions%2F25Thu, 20 May 2010 07:02:08 +0100Collected Evidence: Collected Evidence: Ensure commercial hives/nests are disease freeOne randomised controlled trial in Canada found that the antibiotic fumagillin is not effective against Nosema bombi infection in managed colonies of the western bumblebee Bombus occidentalis. One replicated controlled trial in South Korea found that Indian meal moth Plodia interpunctella in commercial bumblebee colonies can be controlled with the insect pathogen Bacillus thuringiensis (Bt) Aizawai strain, at a strength of 1 g Bt/litre of water.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F42http%3A%2F%2Fconservationevidence.com%2Factions%2F42Thu, 20 May 2010 11:17:19 +0100Collected Evidence: Collected Evidence: Control fire risk using mechanical shrub control and/or prescribed burningOne replicated controlled trial in mixed temperate forest in the USA showed that for bee conservation, it is best to control fire using cutting and burning combined. This increases herbaceous plant cover in subsequent years.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F37http%3A%2F%2Fconservationevidence.com%2Factions%2F37Thu, 20 May 2010 12:49:47 +0100Collected Evidence: Collected Evidence: Control deployment of hives/ nests We have found no direct evidence for the effects of excluding Apis mellifera hives, or nests of other managed pollinators, on populations of wild bees. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F39http%3A%2F%2Fconservationevidence.com%2Factions%2F39Thu, 20 May 2010 13:54:55 +0100Collected Evidence: Collected Evidence: Connect areas of natural or semi-natural habitat for bees We found no evidence of the effects on wild bee communities of connecting patches of natural or semi-natural habitat. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F10http%3A%2F%2Fconservationevidence.com%2Factions%2F10Thu, 20 May 2010 14:39:05 +0100Collected Evidence: Collected Evidence: Create patches of bare ground for ground-nesting beesOne replicated controlled trial in Germany and four small trials (three replicated, one not) have shown that artificially exposed areas of bare soil can be successfully colonised by ground-nesting solitary bees and wasps in the first or second year. We have captured no evidence for the effect of creating areas of bare ground on bee populations or communities on a larger scale.  Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F13http%3A%2F%2Fconservationevidence.com%2Factions%2F13Thu, 20 May 2010 19:29:53 +0100Collected Evidence: Collected Evidence: Enhance bee taxonomy skills through higher education and training We have captured no evidence for the effects of developing taxonomy skills on bee conservation. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttp%3A%2F%2Fconservationevidence.com%2Factions%2F57http%3A%2F%2Fconservationevidence.com%2Factions%2F57Thu, 20 May 2010 20:44:42 +0100